Tokyo, Japan – A decades-old question about feline agility has finally been answered by researchers at Yamaguchi University. A new study reveals the unique construction of a cat’s spine allows them to consistently land on their feet, a feat that has puzzled scientists for centuries.
In laboratory experiments, researchers manipulated the spines of deceased cats, discovering that the front portion of the spine can rotate up to 47 degrees. The rear segment, however, is significantly stiffer and approximately twice as heavy. This construction enables cats to first rotate their front bodies during a fall, followed milliseconds later by the rear, allowing them to correct their posture mid-air.
The study, detailed in reports appearing on March 25, 2026, as well found that cats instinctively draw their front paws in and extend their hind legs to ensure a safer landing. The findings shed light on a remarkable adaptation that has long fascinated animal behaviorists.
“With this research, a great mystery in the animal world has finally been solved,” said biologist Dirk Draulans, as reported by VRT NWS. “The upper part of the spine is exceptionally flexible, while the lower part is twice as heavy.”
However, the research also uncovered a curious anomaly: falling cats almost always rotate to the right. The reason for this consistent directional preference remains unclear, though researchers speculate that asymmetrical blood flow may play a role.
Kattenbalans, or cat balance, isn’t solely dependent on spinal structure, according to cat expert Raf Van Duyse. The tail and nervous system also contribute significantly to this impressive ability. The study reinforces the understanding that the unique build of the spine, combined with the tail and sense of balance, makes the “righting reflex” possible, according to De Telegraaf.
The development offers new insights into biomechanics and animal adaptation, potentially influencing fields like robotics and engineering. Further research is planned to investigate the reasons behind the cats’ consistent rightward rotation during falls.
Gazet van Antwerpen also reported on the findings.
